Which of the following series of commands will restrict Telnet access to the router?

A <code class="args"><em>Lab_A(config)#access-list 10 permit 172.16.1.1<br>Lab_A(config)#line con 0<br>Lab_A(config-line)#ip access-group 10 in</em></code>
B <code class="args"><em>Lab_A(config)#access-list 10 permit 172.16.1.1<br>Lab_A(config)#line vty 0 4<br>Lab_A(config-line)#access-class 10 out</em></code>
C <code class="args"><em>Lab_A(config)#access-list 10 permit 172.16.1.1<br>Lab_A(config)#line vty 0 4<br>Lab_A(config-line)#access-class 10 in</em></code>
D <code class="args"><em>Lab_A(config)#access-list 10 permit 172.16.1.1<br>Lab_A(config)#line vty 0 4<br>Lab_A(config-line)#ip access-group 10 in</em></code>

Correct Answer: <code class="args"><em>Lab_A(config)#access-list 10 permit 172.16.1.1<br>Lab_A(config)#line vty 0 4<br>Lab_A(config-line)#access-class 10 in</em></code>

Telnet access to the router is restricted by using either a standard or extended IP access list inbound on the VTY lines of the router. The command access-class is used to apply the access list to the VTY lines.
Bissoy MCQ
#Networking #Security

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